Convert year into Matlab date format
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How can I convert the year into the matlab date format if I have a big data set? I have a table:
Year Data
1999
2000
2001 ...
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dpb
2018년 5월 5일
편집: dpb
2018년 5월 5일
Yes, datenum(*) datevector input syntax requires the minimum 3-vector [y,m,d] so can't pass just a numeric year. As you've discovered, the easy workaround is to simply augment with the 1,1 for the month,day.
The same idea as Ameer shows below also works for datenum just for the record; I recommend using datetime for new work; it has many advantages over the venerable datenum.
>> yr=[1999:2002].';
>> yr=datenum(num2str(yr),'yyyy');
>> datestr(yr)
yr =
4×11 char array
'01-Jan-1999'
'01-Jan-2000'
'01-Jan-2001'
'01-Jan-2002'
>>
You note datenum has introduced the 1,1 mo,da value anyway so may as well use the simpler form and go on.
(*) BTW, datetime is the same; it won't supply implicit default values for missing arguments (another enhancement, maybe(???) altho how much trouble is it to add a ',1,1' to the argument list, anyway? :) )
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Ameer Hamza
2018년 5월 5일
If you have a numeric vector containing year numbers, you can convert a vector into a datetime array object as follow
myVector = 2000:2010
datetime(string(myVector), 'Format', 'yyyy')
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